You may or may not be awed by this twisted concept for a level, but no doubt many of you are wondering how to replicate it. Ergo, I came up with this simple tutorial which also highlights the most crucial steps involved in such an attempt. Honestly, someone should go make an article out of this since I'm lazy, but here goes:

How to twist a level 11 simple steps

1. Open JCS.
2. Load a random level.
3. If it is passworded, enter the password.
4. Click on layer 4.
5. Zoom out exactly 42 times.
6. Center the scrollbars.
7. Click on Layer Properties.
8. Select the X-Speed edit box.
9. Change the value from 1 to -1. (crucial)
10. Click the OK button.
11. Save the level.

How to check that the level has been twisted?

1. Go to File --> Save & Run.
2. Wait for JJ2 to start up.
3. Wait for your level to finish loading in JJ2.
4. Run around the level and watch as your brain attempts to decipher the twisted.

Like I mentioned earlier, this article is made with the objective of being both concise and definitive, yet also thorough and exhaustive. Nevertheless, I am sure many of you would be confused and run into problems at one step or another. If something doesn't work, 99% of the time you accidentally skipped or misinterpreted a step. The remaining 1% is when you intentionally skip a step or or only perform it partially. Just to be sure, I have also come up with this idiotproof visual aid to complement the tutorial: